B1402 Toyota Code - Immobiliser Key Check NG
Quick Answer
The B1402 Toyota code indicates an issue with the immobilizer key check system in the vehicle. Common causes include Faulty immobilizer key or key fob, Weak or dead key fob battery, Malfunctioning immobilizer antenna. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1402 Toyota indicates Immobiliser Key Check NG.
- Common causes
- Common causes include Faulty immobilizer key or key fob, Weak or dead key fob battery, Malfunctioning immobilizer antenna.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code B1402 Toyota Description
The B1402 Toyota code indicates an issue with the immobilizer key check system in the vehicle. The immobilizer system is designed to prevent unauthorized access to the vehicle by requiring a specific key or key fob to start the engine. When the system detects a problem with the key check, it will trigger this diagnostic trouble code (DTC).
Common Causes of B1402 Toyota
- Faulty immobilizer key or key fob
- Weak or dead key fob battery
- Malfunctioning immobilizer antenna
- Defective immobilizer control module
- Wiring issues in the immobilizer system
Symptoms of B1402 Toyota
- Engine cranks but does not start
- Engine stalls shortly after starting
- Immobilizer light remains illuminated on the dashboard
- Inability to disarm the vehicle's alarm system
- Loss of power while driving
How to Fix B1402 Toyota
- Check the immobilizer key and key fob for any damage or malfunctions. Replace if necessary.
- Replace the key fob battery with a new one to ensure proper functioning.
- Inspect the immobilizer antenna for any damage or corrosion. Clean or replace as needed.
- Test the immobilizer control module for proper operation and replace if faulty.
- Check the wiring in the immobilizer system for any shorts or breaks. Repair or replace as necessary.
Cost to Fix B1402 Toyota
The cost of repairing the immobilizer key check NG issue can vary depending on the specific cause of the problem and the labor rates in your area. In general, replacing a key fob battery or key can cost between $50 to $200, while repairing or replacing the immobilizer control module can range from $200 to $500. Labor costs can add an additional $80 to $150 per hour, so it's advisable to check with local auto repair shops for a more accurate estimate based on your vehicle make and model.
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Frequently Asked Questions about B1402 Toyota Code
1. What are the common symptoms of OBDII code B1402 Toyota - Immobiliser Key Check NG?
The common symptoms include difficulty starting the vehicle, engine stalling, and the immobilizer light staying illuminated.
2. What are the possible causes of OBDII code B1402 Toyota - Immobiliser Key Check NG?
Possible causes include a faulty immobilizer system, issues with the key transponder, wiring problems, or a malfunctioning Engine Control Module (ECM).
3. How can I diagnose the OBDII code B1402 Toyota - Immobiliser Key Check NG?
Diagnosis typically involves using a scan tool to retrieve the stored fault codes, checking the immobilizer system for proper operation, inspecting the key transponder, and examining the wiring for any damage or loose connections.
4. Can I still drive my vehicle with OBDII code B1402 Toyota - Immobiliser Key Check NG?
It is not recommended to drive the vehicle with this code present, as it may lead to unexpected stalling or starting issues, potentially leaving you stranded.
5. How can I reset the OBDII code B1402 Toyota - Immobiliser Key Check NG?
Resetting the code requires fixing the underlying issue first, which may involve repairing the immobilizer system, key transponder, or related wiring. Once the issue is resolved, the code can be cleared using a scan tool.
6. Are there any DIY repair tips for fixing OBDII code B1402 Toyota - Immobiliser Key Check NG?
DIY repair tips include checking the key battery, ensuring the key is synchronized with the immobilizer system, and inspecting the wiring harness for any visible damage.
7. Can a locksmith help with OBDII code B1402 Toyota - Immobiliser Key Check NG?
A locksmith specializing in automotive key programming may be able to help diagnose and repair issues related to the immobilizer system or key transponder causing this code.
8. How much does it cost to fix OBDII code B1402 Toyota - Immobiliser Key Check NG?
The cost of repair can vary depending on the root cause of the issue. Simple fixes like replacing a key battery may be inexpensive, while more complex repairs involving the immobilizer system or ECM can be costly.
9. How long does it take to repair OBDII code B1402 Toyota - Immobiliser Key Check NG?
The repair time can vary based on the complexity of the issue. Simple fixes may take a short amount of time, while more involved repairs could require several hours or even days, especially if parts need to be ordered.
10. Is it necessary to visit a dealership for OBDII code B1402 Toyota - Immobiliser Key Check NG repair?
While a dealership may have specialized knowledge and tools for diagnosing and repairing this code, independent automotive repair shops and locksmiths with the right expertise can also effectively address the issue.
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